Vapor-generator.



No. 810,486. PATENTED JAN. 23, 1906. A. HARRISON.

VAPOR GENERATOR.

APPLICATION FILED AUG. 1, 1904.

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AMOS HARRISON, OF CHICAGO; ILLINOIS, ASSIGNOR OF ONE-FOURTH 'lO ROBERTH. WALSH, OF CHICAGO, ILLINOIS.

VAPOR-GENERATOR.

Specification of Letters Patent.

Patented Jan. 23, 1906.

Application filed August 1 1904. Serial No. 219,007.

of Illinois, haveinvented a new and useful description.

My invention relates to a form of generator having one or more porouslayers of incombustible material arranged to be heated by the burning ofa suitable combustible, the products thereof passing through said material and mingling with vapor produced by discharging a liquid upon saidheated material. The quantity of liquid employed is regulated so that itWill not serve to cool the material below the vaporizing-point of theliquid.

The object of my invention is to produce a device of the kind describedin a practical and durable structure effective in operation and freefrom the danger of explosions.

To this end it consists in the novel construction, arrangement, andcombination of parts herein shown. and described, and more particularlypointed out in the claims.

In the accompanying drawings, wherein like or similar referencecharacters indicate like or corresponding parts, Figure 1 is a verticaldiametrical section of m device, and Fig. 2 is a transverse section taen on line 2 2 of Fig. 1. r

In the preferred form of my device shown in the drawings, 1 is the outershell or casing of my generator, which may be provided withheat-insulating covering 2, either internally or externally, as desired.The doors 3 3 are provided for giving convenient access to the interiorof my device, and the perforated partitions 4 4, one or more of whichmay be employed, as desired, are arranged to extend transversely'acrossthe shell and attach thereto in any suitable manner.

Theporous layers of incombustible mate- 45 rial-5 5 are each preferablycomposed of a bed'cf small pieces or blocks of iron, copper, iirebrick,magnesia, or equivalent material of regular or irregular form, butpreferably of such a size and-form that the interstices be- I tween thepieces will aflordsuflicient draft andetree passage of the products'ofcombus tron through the la ers into the chamber 6 at the upperpart of te shell and for the perco- Vapor-Generator, of which the following is aitem hf liquimpreferably Water, introduced by, the pipes 7 7 orequivalent means, spread by a foraminated annular trough 8 or othersuitable means over the'surface of the u pper porous layer. In otherwords, the layers form one or more porous vaporizing-bodies for apurpose hereinafter described.

A burner 9 of any preferred form for efi'ec tually heating the layers 5is provided, preforably arranged to employ oil or gas as fuel; but anymeans for maintaining the tempera ture of the porous layers at a pointwhere the liquid upon coming in contact therewith will be promptlyvaporized may be employed.

An outlet-pipe 10 is arranged to comniunicate with the chamber 6, and abafile-plate or diaphragm 11 is arranged within the charm her. 6 beforethe opening to the outlet-pipe 10 to prevent a sudden rush of vaporthereto from carrying an undesirable quantity of the liquid into thepipe 10. If desired, a safetyvalve 12 may be arranged either upon theoutlet-pipe 10, as shown, or at any other con venient point, and a valve14 may be arranged upon the supply-pipe to'the burner 9 to regu late thesupply of combustible and intensity of the heat. Where it is desired togenerate a vapor at atmospheric pressure only, the opening 15 'may bemade in the shell 1 to per mit of free access of air to the burner; butWhere it is desired to have the vapor generated under greater pressureit evident that the shell must be made tight to prevent the loss ofpressure and air and the combustitle forced into the shell, as requiredby some suitable means.

The operation of my device is as follows: First a flame is started atthe burner 9 and the porous layersheated to a suitable temper ature,after which water or other liquid in quantities insufficient to cool theporous layers below the vaporizingqioint of the liquid is introduced bymeans of the pipes 7 or equivalent means and spread or spra ed by thetrough 8 over the layers of material. The liquid upon coming incontactwith the heated layers of material is at once vaporized and raises intothe chamber 6. The hot products of combustion from the burner 9 alsopass through the porous layers into the chamber 6, and after mixing withthe vapor fronithe liquid the two may pass out by means'of he pipe 10and be employed for any purpos desired.

It is obvious that, if'preferrcd, the liquid may be sprayed over thevaporizing-body. Any preferred means may be employed for this pur sea. Aspraying device is shown in dotted inns in Fig. 1 of the drawings, andsuch a construction or equivalent means may be employed either alone orin connection with the distributing trough described above.

In the foregoing only the preferred form of my device is described andillustrated in the drawings; but it is evident that many immaterialmodifications may be made without departing in the least from the spiritand scope of my invention. Hence I do not wish to be understood aslimiting myself to the exact form and construction shown.

Having thus described my invention, what I claim as new, and desire tosecure by Letters hatent, is

1. A vaporgenerator comprising a chamher, an incor-nbustible porous bodyarranged within said chamber, and means for maintaining combustionwithin said chamber to heat said porous body, in combination with meansfor showering a liquid upon said heated body, and means for drawing offthe steam and gases of combustion.

2. A vapor-generator comprising a chamber, an incombustible porous bodyarranged ithin the chamber, and means for continuously introducingmaterial for sup ortins, combustion into said chamber, whereby saidporous body is heated to a suitable temperature, in combination withmeans for showering a liquid upon said porous body, and

means for drawing oil the comrningle steam and gases of combustion.

3. A va or-generator comprising an in closing shell provided with atransverse vaporizing-partition dividing the shell into a vapor-domeabove and, a'combustion-chamber below the same, a burner below thepartition arranged to heat the same to a vaporizing tern erature andmeans for permitting the re nets of combustion to pass to the vapor;-ome, in combination with means for delivering' a fluid to thevaporizing-partition and means for drawing oil the resultant gases.

4; A vapor-generator comprising an inclosing shell provided with atransverse vaporizing-partition dividing the shell into a vapor-domeabove and a combustion-chamber below the same, said combustion-chamberbeing open to atmospheric pressure, a burner arranged below thepartition to heat the same to a vaporizing temperature, and means forpermitting the products of combustion to pass to the vapor-dome, incombination with means for delivering a fluid to, thevaporizing-partition and means for drawing off the resultant gases.

5. A vapor-generator comprising an inclosing shell provided with atransverse vap orizing partition dividing the shell into a vaor-domeabove and a combustion-chambe:

slow the same, a burner below the partition pipe for drawing off thecommingled vapor and products of combustion, and a battleplate arrangedbefore the entrance to said 1 e. p A device of the kind described,comprising the combination of a suitable shell one or more porousvaporizing-bodies extending horizontally across said shell each consisting of a plurality of blocks of incombustible material, means forsupporting the same, means for maintaining combustion within a portionof said shell to heat said blocks to a vaporizing temperature and meansfor thoroughly distributing a liquid upon the upper surface of theheated blocks, thereby producing a vapor within the shell composed ofsteam and the products of com bustion.

7. A device of the kind described, co prising the combination of a shellprovided with a covering of heat-insulating material one or more porouslayers of incombustible material extending horizontally across saidshell, a burner adapted to maintaincombus tion within said shell forheating said porous layers, means for distributing a liquid upon theupper surface of said heated porous layers thereby producing within theshell a heating medium composed of vapor mixed with the products ofcombustion.

8. A device of the kind described, comprising the combination of a shellprovided with a covering of heat-insulating material,

one or more layers of incombustible material extending horizontallyacross said shell, a burner adapted to maintain combustion within saidshell forheating said layers, means for supplying said burner with asuitable combustible material, means for showering a'liquid unontheupper suyface of said heated layers thereby producing within the shell aheating medium composed of va: por mixed with the products ofcombustion.

9. A device of the kind described, com prising the combination of asuitable shell, one or more layers extending horizontally across saidshell, each consisting of a plurality of blocks of incombustiblematerial,

means for supporting the same, means for mamtaimng combustion withinsaid shell to heat said blocks, a foraminated trough ar-. ranged withinsaid shell above said blocks adapted toshower a liquid dischargedtherein upon the upper surface of. said heated blocks, thereby producinga vapor within the shell composed of steam and the products ofcombustlon.

burner ada ted to maintain combustion within said shel for heating saidblocks and means for, "supplying said burner with a suitablecombustible. material, a foraminated trough adapted to shower a liquiddischarged there- ,in upon the upper surface of said heated blocks,thereby producing a vapor within the shell composed of steam and theproducts of said combustion.

11. A device of the kind described, comprising the combination of asuitable shell provided with a covering of heat-insulatin material, adisoharge-pipe connected to sai L shell a baffle-plate arranged beforethe open ing to said discharge-pipe, one or more layers of incombustiblevaporizing material extending horizontally across said shell, a burnerada ted to maintain combustion within said shell for heating saidlayers, and means for showering a liquid upon said heated layers,

thereby producing a vapor within the shell composed of steam and theproducts of combustlon.

12. A device of the kind described, comprising the combination of asuitable shell provided with a covering of heat-insulating material, adischarge-pipe connected to said shell, a baffle-plate arranged beforethe opening to said discharge-pipe, one or more layers extendinghorizontally across said shell each layer consisting of a plurality ofblocks of incombustible vaporizing material, means for supporting thesame, one orv more burners adapted to maintain combustion within saidshell for heating said blocks, means for supplying said, burner with asuitable combustible material, a foraminated trough adapted to shower aliquid discharged therein upon the upper surface of said heated blocks,thereby producing a vapor Within the shell composed of steam and theproducts of said comustion.

In testimony whereof I have hereunto signed my name in the presence oftwo subscribing Witnesses.

AMOS HARRISON. Witnesses:

BURTON U. HILLs, CHARLES I. COBB.

